北京三号B卫星海量数据传输处理系统设计与实现  

Design and Implementation of Massive Data Transmission andProcessing System on BJ-3B Satellite

作　　者：刘聪聪 韩宇 孙钰林[1] 袁素春[1] 肖化超[1] 朱红[1] 袁玉 王元乐[1] LIU Congcong;HAN Yu;SUN Yulin;YUAN Suchun;XIAO Huachao;ZHU Hong;YUAN Yu;WANG Yuanle(Xi’an Institute of Space Radio Technology,Xi’an 710071,China)

机构地区：[1]西安空间无线电技术研究所,西安710071

出　　处：《航天器工程》2023年第3期131-137,共7页Spacecraft Engineering

摘　　要：海量数据传输与处理技术是高分辨率遥感卫星系统的关键技术,北京三号B卫星作为高分辨率光学遥感卫星其图像传输速率高达几十吉比特每秒,因此设计了一种基于万兆网接口与高速串行收发器GTX/GTH接口的数据传输与处理系统。该系统使用万兆网接口接收前端相机载荷数据,使用GTX/GTH接口实现产品内数据互联,并基于超大规模现场可编程门阵列(FPGA)作为核心处理芯片实现海量数据路由分发、编解码和处理。测试结果表明:可实现36.04 Gbit/s数据接收和60 Gbit/s数据传输处理能力,并具有可靠性高、系统延时小、通用性强的优点。与传统数传方案相比,系统数据处理能力提高了一倍以上,且显著降低了硬件成本。Massive data transmission and processing technology is a key technology for high resolution remote sensing satellite.As a high resolution optical remote sensing satellite,The BJ-3B satellite image rate is up to tens of gigabits per second.Therefor,a data transmission and processing system based on 10Gbit/s attachment unit interface(XAUI)and high speed serial transceiver GTX/GTH interface has been designed.The system uses XAUI to receive front-end camera payload data,uses high speed serial GTX/GTH interface to realize data interconnection within the product,and uses very large scale FPGA as the core processing chip to realize routing,encoding,decoding and processing of massive data.The results show that the design can realize 36.04Gbit/s data reception,60Gbit/s data transmission processing capability,and has the advantages of high reliability,small delay and strong universality.Compared with traditional data transmission solutions,the system processing capacity has been more than doubled,and the hardware cost has been greatly reduced.

关 键 词：北京三号B卫星 海量数据 万兆网接口 GTX/GTH高速串行接口 

分 类 号：TN919.3[电子电信—通信与信息系统]